The topic of the final paper is the urban and architectural solution of the business zone Gacka, located in the southern part of Osijek. The urban solution determined the position of business, public, and tourist purposes. Also, urban planning has determined the position of the stamps of office buildings that will be located on a shared plot and whose underground garage will be connected by one shared floor. The architectural solution deals with the project of one of the office buildings. The concept of the architectural solution continues the initially set goals of the urban solution. Some of the objectives of the urban solution were to increase the greenery, create a new facade of the city, create a view, emphasize the City Garden hall, and create a space that could be used all day. The Gacka office building is located in the southern part of Osijek, along Kneza Trpimira Street, a vital traffic axis of the city. The office building that is the subject of the architectural solution is located in the northern part of the scope. Business buildings are located along the main "street" on the plot, which accepts the influx of passers-by from Gacka Street to Kneza Trpimira Street, or to the Gradski vrt hall, which we wanted to emphasize with this solution. That street was returned to the city so all residents could use it unhindered. The solution of the building is based on the goals of increasing the quality of life and work of employees, introducing greenery into the building, and creating a sense of community among employees.